L. Sprague de Camp:
Science Fiction Technology and Ideas
Invention/Technology Source Work (Publication Date)

Hyperbolic Solenoid - mag lock picker

The Exhalted (1940)

Methuen Treatment - smart injection

The Exhalted (1940)

Slow Glass Rod - light stopped

The Exhalted (1940)

Soft Speaker - focus sound like a spotlight

The Exhalted (1940)

Telelubricator - perfectly frictionless

The Exhalted (1940)


(Records 1 to 5 of 5)

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Life Chamber
( 6/16/2013)

Home Termite Habitat
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Electric Car Recharging Station
( 5/30/2013)

Vision Tubes
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Virtual Panopticon
( 5/18/2013)

Transmitter Eyes
( 5/15/2013)

Morphogen
( 5/10/2013)

Polar Ice
( 5/2/2013)

Sunshade-Photocell Collector
( 5/1/2013)

Coder
( 4/15/2013)

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